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End of Pipe Gripper Plug 3 IN. GRIPPER
Features
- Extra large zinc wing nut for ease of tightening, no wrench required,and will not rust
- Galvanized carriage bolt to prevent corrosion
- Plug is rated for 17 PSI or 40-ft of head pressure
- End-of-pipe seals only at the end of a pipe, preventing plug from falling into stack
- End of Pipe Gripper plugs are made with ABS glass-reinforced plates for added strength
- Natural rubber O-ring for excellent expansion and memory
Manufacturer Resources
Product Specs
- Volume:
- 0.011
- Department:
- Plumbing
- Product Group:
- Plumbing Testing
- Product Subgroup:
- Testing Products
- Product Type:
- Test Plug
- Product Weight:
- 0.35
OATEY 33402 – Frequently Asked Questions
1) What pipe size does the Oatey 33402 gripper plug fit?
The Oatey 33402 is the 3 inch size in the End of Pipe Gripper Plug line. It seals the open end of a 3 inch pipe, so it is for DWV stacks, cleanouts, and risers of that diameter only. For other diameters you need the matching size plug in the same gripper family.
2) How much pressure will the Oatey 33402 test plug hold?
It is rated for 17 PSI, which works out to about 40 feet of head pressure. That covers a typical DWV water test on a stack of roughly four stories of column height. If your test head will exceed 40 feet, this plug is the wrong tool for that riser.
3) What is the difference between an end-of-pipe plug and an inside-pipe test plug?
An end-of-pipe gripper, like the 33402, seals against the end face and outside lip of the pipe rather than inside the bore. The practical benefit is that it cannot drop down into the stack if the wing nut backs off during a test. An inside plug expands within the pipe bore and is what you use when you need to seal partway up a line, not at an open end.
4) Do I need a wrench to set this Oatey gripper plug?
No. The 33402 tightens with an extra large zinc wing nut by hand, so a plumber on a ladder at a roof stack can set and release it without carrying a wrench. The wing nut is zinc and the carriage bolt is galvanized, so repeated wet tests will not rust the hardware out.
5) Will this plug work in cast iron and plastic DWV pipe, or only one material?
The seal is made by a rubber O-ring compressed against the end of the pipe, not by anything that keys to a specific pipe material. That means the 3 inch gripper works on any 3 inch DWV pipe with a clean, intact end, cast iron, ABS, or PVC. What matters is the pipe end condition, not what the pipe is made of, so a cracked or badly out-of-round end will leak regardless of material.
6) Is the Oatey 33402 gripper plug reusable on multiple test jobs?
Yes, it is built for repeat use. The sealing plates are ABS glass-reinforced for strength, the O-ring is natural rubber chosen for expansion and memory so it returns to shape between tests, and the bolt and nut are corrosion protected. That combination is why MRO and plumbing contractors keep these on the truck rather than buying single-use plugs.
7) How heavy is the Oatey 33402 plug for carrying a set up a ladder?
It weighs 0.35, light enough that a plumber can carry several sizes in a bucket. Shipping volume is listed at 0.011, so a case of them takes very little truck space for a multi-unit or institutional job where you are plugging several stacks at once.
How fast can I get the OATEY 33402 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 33402 come with a warranty?
Absolutely. The OATEY 33402 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 33402?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the OATEY 33402 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.